She needs to work her way up to a good dose, just like a man would. Usually 80-100mcg is a all most women can tolerate. Start out with 20mcg a day and have her work her way up by 20mcg more a day. If she gets too jittery, she has found her dose, just back down what made her jittery by 10-20mcg a day.
For instance if 80mcg makes her very jittery, she should back down to 60 or 70mcg a day.
